It sounds like the grasses you have are Pink Muhly or Muhlenbergia capillaris. Its a native bunching grass that grows into about a 3 foot clump. Each fall they bloom with tall pink airy plumes that turn golden in winter. All the plants you've chosen will need some supplemental irrigation for the first year because you just can't rely on our rains. The Muhly grass will need more water than the bougainvillea or cactus. I'd recommend you call the City of Mesa and request the FREE booklet, Landscape Plants for the Arizona Desert. 480-644-3306, or you can request it on on line at www.cityofmesa.org/utilities/conservation Also, Desert Landscaping for Beginners will help you adjust to our very different way of landscaping and gardening here in the Sonoran Desert. It's available on line or at major bookstores. Here is a link that might be useful: Desert Landscaping for Beginners

jb..please see the thread titled "Newbie looking for direction." It's one of the first few threads on this forum. Regarding M.s. Gracillimus. I don't think you'll find a commercial source for the seed, and I'd be surprised if you can find a trading source for viable seed. I've tried seed from 3 different traders, and have been unable to get any germination. Pampas grass (Cortaderia selloana) is easy to grow from seed.

There are both evergreen and deciduous (herbaceous) grasses - typically the deciduous ones get cut back in late winter or early spring and the evergreen ones do not. Deciduous grasses - in general - grow taller than evergreens and produce very showy seedheads. They also turn straw-colored in late fall and winter. Evergreen grasses tend to hold their color year round. Bronze colored grasses are most often of the genus Carex and are considered evergreen (or everbronze). Also most of the blues will be evergreen as well - the fescues, helichtotricon, elymus, etc. These only need occasional grooming to remove old fronds. Most grasses propagate easily from division which is typically done in spring. Some will self seed easily as well - like the bronze carex. Many named cultivars produce few or sterile seeds so harvesting may be futile. Blue coloring can vary from species to species and cultivar to cultivar - some will hold color better than others. In a hot, dry summer climate it is pretty common to have fescues and oat grass fade in their color intensity. btw, the Darke book is essential if you have an interest in growing OG's.

A carex? Photo would help, if you can get one.